Hotel staff won't tell you if a celebrity is staying at the hotel.
For privacy matters, celebrities typically go by an alias or as a non-registered guest (NRG) when staying at a hotel, according to The Independent.
If Taylor Swift, for instance, was staying at a 5-star hotel and someone called in asking if Swift was in fact staying there, the staff would respond saying that they do not have a guest registered under that name.
[Photo via @thestaycationers]